CVE-2026-23475 (GCVE-0-2026-23475)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-04-13 06:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a NULL-pointer dereference. Fix this by moving the statistics allocation to controller allocation while tying its lifetime to that of the controller (rather than using implicit devres).
References
Impacted products
Vendor Product Version
Linux Linux Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
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{
  "containers": {
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          "programFiles": [
            "drivers/spi/spi.c"
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          "vendor": "Linux",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix statistics allocation\n\nThe controller per-cpu statistics is not allocated until after the\ncontroller has been registered with driver core, which leaves a window\nwhere accessing the sysfs attributes can trigger a NULL-pointer\ndereference.\n\nFix this by moving the statistics allocation to controller allocation\nwhile tying its lifetime to that of the controller (rather than using\nimplicit devres)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T06:08:12.280Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af"
        },
        {
          "url": "https://git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1"
        },
        {
          "url": "https://git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1"
        },
        {
          "url": "https://git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9"
        }
      ],
      "title": "spi: fix statistics allocation",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23475",
    "datePublished": "2026-04-03T15:15:54.211Z",
    "dateReserved": "2026-01-13T15:37:46.022Z",
    "dateUpdated": "2026-04-13T06:08:12.280Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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